Page 134 - slides.dvi

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Unix
Case
e.g.
One
Pipes
Only
of
Named
Study—
Concept
Logically
reply
the
of
allows
=
pipes
Interprocess
basic
“full”
consists
pipe(
of
address
and
int
a
Unix
Communication
this.
Process A
IPC
pair
communication
.
fds[2]
.
of
write(fd, buf, n)
)
“empty”
fds,
schemes.
between
free space
pipes.
one
for
processes
each
new data
with
‘end’
a
of
old data

the

common
Process B
pipe.
read(fd, buf, n)

ancestor

(why?).

130